/*
 * Copyright 2019-2022 Mamoe Technologies and contributors.
 *
 * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
 * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
 *
 * https://github.com/mamoe/mirai/blob/dev/LICENSE
 */

package net.mamoe.mirai.utils

internal actual fun hash(e: Throwable): Long {
    return e.stackTrace.fold(0L) { acc, stackTraceElement ->
        acc * 31 + hash(stackTraceElement).toLongUnsigned()
    }
}

private fun hash(element: StackTraceElement): Int {
    return element.lineNumber.hashCode() xor element.className.hashCode() xor element.methodName.hashCode()
}
